Word · Frequency #26189
ellipse
椭圆
核心释义
ellipse
- 1.
闭合曲线,到两个定点(焦点)距离之和为常数的点的轨迹；等价地,即圆锥与不与其底面相交的平面相交而成的圆锥曲线。
A closed curve, the locus of a point such that the sum of the distances from that point to two other fixed points (called the foci of the ellipse) is constant; equivalently, the conic section that is the intersection of a cone with a plane that does not intersect the base of the cone.
- 2.
由圆锥与平面完全相交形成的封闭平面曲线
a closed plane curve resulting from the intersection of a circular cone and a plane cutting completely through it
闭合曲线,到两个定点(焦点)距离之和为常数的点的轨迹；等价地,即圆锥与不与其底面相交的平面相交而成的圆锥曲线。；由圆锥与平面完全相交形成的封闭平面曲线；椭圆形；[计] 椭圆
用法In use
The orbit of the Earth is an ellipse, not a perfect circle.
用法提示：句中ellipse为名词，作表语，表示椭圆形状。
Please draw an ellipse around the important words in the paragraph.
用法提示：句中ellipse为名词，作宾语，指椭圆图形。
The picture contains several ellipses of different sizes.
用法提示：句中ellipses为ellipse的复数形式，作宾语，表示多个椭圆图形。
the sums of the distances from the foci to any point on an ellipse is constant
verb + an ellipse
Please draw an ellipse on the graph.
请在图表上画一个椭圆。
相关词与表达Connections
搭配Collocations
- draw an ellipse
- 画一个椭圆
- Use a string and two pins to draw an ellipse.用一根绳子和两枚图钉画一个椭圆。
- the center of the ellipse
- 椭圆的中心
- The two foci are equidistant from the center of the ellipse.两个焦点到椭圆中心的距离相等。
- equation of an ellipse
- 椭圆方程
- The equation of an ellipse contains two squared terms.椭圆的方程含有两个平方项。
- focus of an ellipse
- 椭圆的焦点
- Light from one focus of an ellipse reflects to the other focus.从椭圆一个焦点发出的光会反射到另一个焦点。
- squashed ellipse
学习提示Learner notes
记忆技巧Memory Tip
ellipse中间藏着lips（嘴唇），嘴唇轮廓像椭圆，记住这个联想即可。
语境与语域Context & Register
语域：neutral 常见场景：数学几何、工程设计、天文轨道 通常用于数学、几何或设计语境，属于中性书面用词，日常口语中较少出现。
发音与拼写Pronunciation & Spelling
与 ellipse 真正押韵的词：eclipse /ɪˈklɪps/、lips /lɪps/、chips /tʃɪps/、tips /tɪps/（重读音节中的 /ɪps/ 一致）。注意 apocalypse /əˈpɒkəlɪps/ 和 ellipsis /ɪˈlɪpsɪs/ 拼写或发音容易混淆，但 apocalypse 重音在前，ellipsis 结尾为 /sɪs/，二者均不押韵。
一起学习词形Learn the forms together
页面下方列出了常见词形变化。学习时注意它们在句子中的语法位置。
Dictionary facts from ECDICT, WIKTIONARY.